Don’t go beyond what is written (1 Corinthians 4:6). Those who spiritualize what is written (be they Baha’i, Christian or anything else) go beyond what is written; the search for hidden meaning.
I am convinced that we should go beyond what is written.
In fact, we all, including you, go beyond what is written in our daily life.
Jews who wanted converted Gentiles to get circumcised, appealed to what was written.
Until Paul, any Gentile who wanted to worship YHWH and keep the Law was expected to get circumcised. It was an integral part of the religion. YHWH was the God of Israel, and circumcision was a "
perpetual covenant" for all generations, as per
written in the Torah in unequivocal terms.
Then
Paul comes and "spiritualizes" circumcision. He says that literal circumcision is optional, not important, and that we should rather have
"the circumcision of the heart".
Then comes
the author of the epistle to Hebrews and "spiritualize" the Sabbath. He says that the people of God should enter the rest of Christ, and do it today, not at any specific day of the calendar.
Paul and the author of Hebrews didn't concoct overnight an "spiritualized" version of a doctrine.
Such "spiritualized" truth did not come into existence for the first time when their pen touched the paper.
It had existed always, but revealed progressively. The gospel, I insist, is eternal.
I have already provided quotes from Paul that show that, in many of his writings, he did "spiritualize" concepts like death, life, resurrection, ascension to heaven, circumcision, Sabbath, atonement. He didn't do it in all his writing. In some he resorted to a more literal presentation of the subject. But as he said to Colossians,
the mysteries, the hidden wisdom, are presented to more mature Christians.